/*
 * Tencent is pleased to support the open source community by making Angel available.
 *
 * Copyright (C) 2017-2018 THL A29 Limited, a Tencent company. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 *
 * https://opensource.org/licenses/Apache-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 *
 */

package com.tencent.angel.spark.ml.tree.param;

public class RegTParam extends TreeParam {

  public float learningRate;  // step size of one tree
  public float minSplitGain;  // minimum loss gain required for a split

  @Override
  public String toString() {
    StringBuilder sb = new StringBuilder(super.toString());
    sb.append(String.format("|learningRate = %f\n", learningRate));
    sb.append(String.format("|minSplitGain = %f\n", minSplitGain));
    return sb.toString();
  }
}
